DE3431754A1 - IMAGE INFORMATION PROCESSING SYSTEM - Google Patents

Description

Attorney's file: 33 652

description
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The invention relates to an image information processing ' system which includes an image reading unit, a recording unit, a transmission unit, etc. as in a facsimile machine, and with which a so-called personal computer etc. to allow any desired image information processing.

In recent years, the demand for image data composed of figures, characters, etc. has been increasing transferred and "to prepare or to edit. So far is a facsimile machine as a means for transmitting image information been used. However, facilities of this type are designed to simply display the image of a template to read to transmit the read image to another facsimile machine, as well as image information received from another Facsimile machine to be received to record it.

A user who uses a facsimile machine now requests, for example, the required area of an original extract and transfer, transfer the image of a template in which a very specific area is covered, or to transfer the image of a template to which very specific patterns, characters, etc. are added. In such a case, the original must be edited again with glue and scissors and then copied in order thereby preparing a transferable template.

In general, a number of documents or templates must be kept in offices or business premises so that A lot of space is required to store it and a part of it is very troublesome to find

■ take away j and then put these templates back in the correct place Order. When these originals are recorded as image data in one of various storage media, the space for storing and accommodating the original

n can be kept small and a retrieval as well as that Re-filing in the correct order could be done in a simple manner with the help of a computer among others will. However, the means is to read image data, from an original, etc. with high accuracy and to read the

_{n to use} data in a computer and to record the image data stored in the computer on a sheet of paper with high fidelity, generally very large and very expensive, and moreover it only has the function of reading and recording.

A facsimile machine can process image data with a relatively read, record and transmit with high accuracy. Thus when the conventional facsimile apparatus is so modified is that it is connected to a so-called personal computer, etc., so as to allow image data transfer between the Facsimile machine and the computer would be able to process the data in various ways and store the same on the computer, then feed the data back to the facsimile machine for recording, and, if necessary, the data from a '

Facsimile machine to another facsimile machine.

If, in the meantime, a computer is connected to a facsimile machine, among other things is connected, the design of a coupling unit is very important for the following reasons. Since the picture

data that have been read from a template, among other things, 30th

have a very large amount of data, on the one hand it takes a longer time to transfer the data between the reading / recording device and to the computer when the data transfer speed is slow. this has

then result in a longer processing time, and if so 35

the reading recorder with a normal facsimile machine is linked, the sending side often has to be long

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Time even for a request to receive from another Wait for the facsimile machine because the facility is too tight. When transferring data at high speed a parallel data transmission system has therefore hitherto been used, for example a "Centronics coupling unit". On the other hand, the number of data lines for a coupling unit and of lines for a Control signal decreased so as to reduce the volume (or weight) of connecting cables. In other words ^ through reducing the number of lines will lower the cost of the connecting cables themselves when the facilities be connected to each other over a large distance, and the presence of the connecting cables becomes less of a hindrance, if facsimile machines, computers, etc. can be connected to them independently of one another or in combination with others Facilities are used and when they are moved if necessary. In such a case so far a serial communication system has been used (e.g. an RS-232C coupler). That however, the serial data transmission system is complicated and expensive because of its circuitry and still has in addition, a relatively low transmission speed, while a parallel data transmission system a Requires a very large number of data and control signal lines.

According to the invention, therefore, an information processor, for example a computer, with a facsimile device should first be used and, secondly, both a coupling unit for the connection between and the Connection cables can be made inexpensively in order to achieve a high data transmission speed via the coupling unit to achieve.

The parallel data transmission system is more for one transmission of data at high speed. When an image data reading / recording device such as a facsimile machine with an information processor such as a

so-called personal computer, is a coupling unit which has the function of receiving data from the image data reading / recording device to the information processor and has another function to transfer data from the information processor to the image data reading / recording device transferred to. Hence, in the case of using, for example, two sentences of Centronics coupling units 16 data lines per se and at least about 6 additional control signal lines required, so that the cables that are required for these lines will have a very large volume and are very high in cost.

If now the operation of the coupling unit from the point of view time is considered, then -6s come in handy ■ no possibility of entering data into the image data reading / recording device is operated from the outside at the same time as the output of data to the outside world.

The invention is described below on the basis of preferred embodiments explained in detail with reference to the accompanying drawings. Show it:

Fig. 1 is a perspective view of an image information processing system according to a

Embodiment of the invention;

Figure 2 is a block diagram of the system of Figure 1;

3 is a detailed block diagram of FIG

Formation of part of both a computer coupling unit (IFF) and an input / output coupling unit (IFP), which are shown in FIG. 2;
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FIGS. 4a and 4b are flow charts of a schematic operational sequence a system control unit (SCü);

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Fig. 5 is a flow chart showing a schematic operation

a so-called personal computer (1) / and

6a and 6b are timing diagrams showing examples of timing signal control in a coupling

circuit are reproduced.

In FIG. 1, a so-called personal computer 1 in the embodiment shown is connected to a facsimile device 10 via a connecting cable CAB. The facsimile machine 10 is equipped with a telephone set FTE which is connected to the public telephone network. In FIG. 2, the system shown in FIG. 1 is shown schematically in the form of a block diagram. In FIG. 2, the personal computer 1 to a central processing unit CPU, an on / off ^ handover coupling unit IPF, a keyboard KEY, a display CRT and external storage units FD1 and FD2.

The facsimile machine 10 has a network control unit NCU for controlling a network control unit in terms of its mode of operation Connection to the telecommunications line, modulation / demodulation units (modems; LSM, HSM, FSK) for implementation between an image signal and a transmission signal, a data compression / reproduction unit DCR for compressing and encoding image data and reproducing image data from the compressed and encoded data, a read / write buffer RWB for the temporary storage of image data, a scanner ISA for reading image data of an original, a plotter REC for hard copying of image data a sheet of recording paper, a system controller SCU for controlling the operation of the whole facsimile machine and various coupling units. The respective function blocks are connected to the system control unit SCU via the corresponding coupling circuits.

The signal from the telephone line is passed through the network control unit NCU fed to a data switching unit DSU,

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through which it is correctly assigned to the modems LSM, HSM and FSK. Image information from the demodulated signal is passed from the data compression / reproduction unit DCR and the read / write buffer RWB to drive a writing circuit WE so that the plotter REC reproduces and records the image in normal facsimile operation. In a transmission mode, the image signal which has been processed by a video processor VPU is used for compression via the read / write buffer RWB of the unit. _n DCR is supplied, and is then applied to the modulation / demodulation units FSK, HSM and LSM.

A computer coupling circuit IFF is. with a main line the system control unit SCU, and the cable CAP, which in turn is connected to the computer coupling circuit is connected to the input / output coupling circuit IFP of the personal computer 1 connected.

3 shows in detail a part of both the facsimile-side computer coupling circuit IFF and the personal computer-side Input-output coupling circuit IFP. Incidentally, the symbols in this figure, which are provided with lines above, mean that the corresponding Signals take effect when their signal levels

assume a low level L.
25th

3 will now be described in detail. In this embodiment, the coupling cable CAB has 13 signal lines and an unillustrated ground line. The signal lines consist of 8 data lines for transmission from parallel 8-bit data and from 5 control signal lines L1 to L5. In the input / output coupling circuit IFP, which is provided on the side of the personal computer 1, bidirectional logic circuits GA3 and GA4

with three status outputs with three control signal lines 35

LA1 to LA3 or eight data lines DPO to DP7 connected.

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The control signal line L1 is a line through which a single unidirectional signal ONLINE from the facsimile machine 10 side to the personal computer side 1 is passed; another control signal line L2 is a line via which a single in one-way signal FAX / input-output vo the side of the personal computer 1 to the side of the facsimile machine 10 is allowed through. The remaining control lines L3 to L5 are designed as bilateral lines. ! 0 leads. Either one can be activated via the control signal line L3 Signal SEND from the computer side to the facsimile side or a signal SEND can be passed in the opposite direction, via line L4 either a Signal INSRB from the computer side to the facsimile side or a signal INSTB can be passed in the opposite direction; via line L5 either a Signal TX / RX from the computer side to the facsimile side or a signal PE from the facsimile side to the computer side be let through.

In particular, when the personal computer 1 is high Outputs H as the signal TX / RX, this signal is fed to the logic element GA3 via a buffer BF2, whereby then the links G7, G8 and G12 of the logic element GA3 closed and the links G8, G10 and G11 are opened.

Thus, the signal SEND that comes from the computer side to the facsimile side is the signal INSTB that comes from of the facsimile side goes to the computer side and the signal PE that goes from the facsimile side to the computer side arrives, thereby in such a state that they can pass the linkage element GA3. At this time a low level L is applied to a control terminal DIEN of the logic element GA4 via an inverter IN1, which is thereby set so that 8-bit data from the computer side to the facsimile side 10 in such a Reach the state in which they pass the link GA4, for example in a transmission release

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stood as seen from the computer 1.

On the other hand, when the personal computer 1 outputs a low level L as the signal TX / RX, the gates become G7, G9 and G12 of the logic element GA3 open and links G8, G10 and G11 are closed. As a result, the signal 5END coming from the facsimile side to the computer

. on the computer side, the INSTB signal received from the computer side comes to the facsimile side, and the signal TX / RX coming from the computer side to the facsimile side, placed in such a state in which they can pass the logic element GA3. The link GA4 is set in such a state that the signal coming from the facsimile side to the computer side pass through can (for example, a reception enable state as seen from the side of the computer 1). Here Note that since the control signal line L5 is pulled up to a supply line through a resistor becomes high level H in the above state unless the signal PE from the facsimile side is created.

As for the computer coupling circuit IFF provided on the facsimile machine 10 side, as is in the previous coupling circuit IFP a bidirectional logic element GA1 with three status outputs connected to the control signal lines L3 to L5, and a bilaterally aligned logic element GA2 is connected to connected to the eight data lines. The logic element GA1 also has an exclusive OR element EXOR, which Has input terminals MJ and (2) with which the control signal line L5 and a terminal P4 of an output unit OP1 are connected, and which has an output terminal which is connected to a control signal input terminal of the logic element GA1 via a buffer BF1. If, as in the case of the logic element GA1, there is an output level of the buffer BF1 assumes the level L, the elements GI,

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G3 and G5 closed, but links G2, G4 and G6 become opened while when an output level of the buffer BF1 assumes the level H, the gates G1, G3 and G5 open, but the gates G2, G4 and G6 are closed. The control signal line L1 and input connections of the elements G1, G4 and G5 are connected to connections P1 to P4 of the output unit 0P1 connected; the steering signal line L2 and output terminals the members G2, G3 and G6 are connected to connections P5 to P8 of an input unit IP1. '

An 8 bit data latch LA1 is provided with a data input terminal DI of the logic element GA2 connected. Data input connections of the output unit OP1, data output connections the input unit IP1, a data output connection DQ- "of the logic element GA2 and a data input connection of the data holding element LA1 have 8-bit data main lines DO to D7, which in turn is connected to the system control unit CSU are connected. Address information from a 16 bit output of the unit SCU is sent to a decoder DE1 applied so as to provide two chip select signals CS1 and CS2 produce. The signal CS1 is sent to both the output terminal 0P1 and applied to the input terminal IP1, while the signal CS2 is applied to both the data holding element LA1 and is applied to a NAND gate NA2.

Signals IOW and IOR are control signals which are sent by the Control signals for a microprocessor are generated in the system control unit SCU, and they take a low Level L on when the I / O unit is selected, or a write clock pulse or a read clock pulse is used submitted. Thus, when the microprocessor in the unit CSU determines the I / O unit address with which the signal CS2 is output and then writes predetermined data, the written data is stored by means of the hold circuit LA1 held to be applied to logic gate GA2; when a terminal DIEN of the logic element GA2 with a low level L is applied

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such an 8-bit data value is output to the connecting cable CAB. If meanwhile the processor with this I / O unit address reads, the information is transferred to the data lines of the connecting cable in the main data lines read in when the DIEN terminal of the logic element GA2 assumes a high H level.

Further, when the processor determines the I / O unit address, with which the signal CS1 is output and then goes through the write operation, the lower 4-bit data value becomes on the main data lines from the output unit 0P1 off delivered. When reading with this unit address, the data will be on the upper 4 bits of the main data line used by the input unit IP1.

Figures 4a and 4b show a schematic operation of the system control unit SCU. in the facsimile machine 10 while Fig. 5 shows a schematic operation of the so-called personal computer 1 and FIGS. 6a and 6b show examples of a time signal control for the logic circuit. Based 4a and 4b, the operation of the system control unit SCU in the facsimile machine 10 will now be described first. After the completion of an initial setting, the unit SCU reads the status of a mode selection switch SW and then performs the operation according to its set state. The switch SW is, as shown in Fig. 2, connected to an operating field OPB. When the switch SW is switched to manual mode, the unit SCU controls the system to operate in the same way as the normal facsimile machine.

When the switch SW is set to automatic, the ONLINE signal is output first. In particular, the Terminal address with which the chip select signal CS1 is output is determined, and then 8-bit data whose bit 0 is set to "0" (= L) is written. As a result, the control signal line L1 of the coupling

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Kabel CAB is set to a low level L.

Next, the mode signal on the control signal line L2 is checked. This is done by reading in data, after the connection address is determined with which the chip selection signal CSI is output and then differentiated determines whether bit 4 of the 8-bit data value that has appeared on the main data lines is "1" or "0". In this embodiment it is assumed that the control signal from L (= "0") offers a facsimile mode FAX, and the same signal from H offers an input / output mode. In other words, in this embodiment, a facsimile mode is data transmission which takes place between the personal computer 1 and another facsimile machine connected via the telephone line is, and an input / output mode sets a data transmission which occurs between the facsimile machine 10 and the Personal computer 1 is carried out.

In the case of an input / output mode, the level of the control signal line becomes L5, i.e. the signal TX / RX checked. When the signal level becomes TX (the low level L), the System control unit SCU set to a mode in which the image data, which by the scanner ISA of the facsimile machine 10 are sent to the personal computer 1 side.

In this mode of operation, the unit SCU of the facsimile machine stores 10 shows the image data that is received from the scanner ISA in

go to the read / write buffer RWA via a line have been, and then outputs the data via the coupling circuit IFF to the connecting cable CAP. To the receiving side (in this case the personal computer 1) of it will inform you that the data will now be released

Q5 the low level SEND signal on the control signal line L3 set (to hold this L state) after the 8-bit data has been output. Then the signal level

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of the control signal line L4 is monitored to wait for the signal INSTB of the low level, which indicates the completion of reception and has been sent from the data receiving side (the computer 1), appears on the line L4.

b When the INSTB signal appears on the line, the Unit SCU sends the signal SEND and prepares a subsequent data transfer. After finishing reading and When the image data are transmitted, the ONLINE signal on the control signal line L1 is deleted.

When the signal level of the control signal line L5 becomes RX (the high level H), the unit SCU becomes a mode at which the data sent from the personal computer 1 is recorded by the plotter REC.

In this mode, the SCU unit first sets the plotter to start and then starts receiving data after both the data end as well as the remaining amount of the recording paper sheets are checked. When data is received, the level of the control signal line L3 is monitored and 8-bit data on the Data lines are read when the SEND signal has arrived. The read data is then in the read / write buffer RWB stored; when the data of a line have been completely stored, the unit SCU generates one Output on the plotter REC.

· The unit SCU issues the signal INSTB for confirmation each data reception to the control signal line L4. When the remaining amount of the recording paper sheets decreases, will the signal PE of the low level is output to the control signal line L5 to the receiving side (the computer 1) therefrom Inform fact. When the end of data is detected, the ONLINE signal is on the control signal line L1 deleted, by the way, the SCU unit provides the end of data in this embodiment by measuring the elapsed time from the previous data reception; If the elapsed time reaches a predetermined value, this is considered to be the end of the data.

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A facsimile mode (see Fig. 4b) will now be described. In this mode too, the SCU unit first checks the level of the control signal line L5, i.e. the control signal TX / RX. In this embodiment, when this signal level assumes TX (a low level), the unit SCU sets a mode (Receive / Transfer mode) when the information sent from another facsimile machine is transmitted via the Telephone line is connected to the personal computer 1 is transmitted. When this signal level RX (a high Level), the unit SCU sets a mode (send / transfer mode) in which the data from the personal computer 1 transmitted data can be transmitted to another facsimile machine connected via the telephone line.

In the case of a signal level RX (a send / T-ransfermode) the unit SCU first clears the signal ONLINE on the control signal line L1 and then starts a preparation for a facsimile transmission. This procedure is similar to normal facsimile transmission, as follows:

a) Calling: The other end's facsimile machine is called by dialing from the telephone set.

b) Confirmation for the calling party: A tone of 2100 Hz is sent out to inform that the calling party is a facsimile line.

c) Function confirmation: The function of the calling subscriber is confirmed with the help of a slow modem (FSK) from 300bps informed.

d) Command information: via send parameters (send speed the high-speed modem, etc.) is informed with the help of the slow modem.

e) Training: The high-speed modem is connected to the line adapted, and a predetermined data pattern is sent to check a data transmission error rate.

f) Post-training response: When the data transmission error rate after the training is less than a certain value, the "termination of a reception preparation

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tung "to move on to the next step. If the rate is greater than a certain value, a "" retraining request is repeated.

After the transmission preparation has ended, the ONLINE signal is set on the control signal line LT and. then both the end of data and the arrival of the SEND signal are checked. When the signal SEND arrives, the unit CSU receives 8-bit data on the data lines ^from the computer coupling unit IFF and stores the same in the read / write buffer RWB. Subsequent to such a data input, the signal INSTB is output to the control signal line L4. When the data of a line is completely saved, data compression is carried out.

^ 5 starts, and after this processing, a data transfer takes place (to another facsimile machine). It is known that in this embodiment a data compression and a data transfer operation operated intermittently so as to shift in time Avoid control. During the data transfer, the control signal becomes ONLINE for the computer coupling unit IFF deleted in order to prevent the computer from entering data transmission.

After the end of data has been determined and a transfer of all data stored in the memory has been completed, the unit USC processes the termination of the facsimile transmission, clears the signal ONLINE and then returns to checking of the switch SW back.

In an operating mode (receive / transfer mode) in which the control signal line L5 assumes a high level TX, responds to a request for reception from the facsimile machine (on the other side) waited on the sending side. When there is a request to receive, a connection is established on the receiving end made in a manner similar to the preparation for a facsimile transmission described above,

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and then data reception is started. It then becomes a condensed data reproduction is carried out for each reception of data of one line, and after this process has been completed the individual 8-bit data are sent to the computer coupling unit IFF. At the same time, the unit SCU the signal SEND on the control signal line L3 and then waits for the signal INSTB on the control signal line L4 appears. When the INSTB signal arrives, the SEND signal is cleared and then becomes the one described above Repeat the process until all data from line 1 has been sent. After receiving a reception from the facsimile machine the other side is finished and that in the memory of the facsimile machine 10 stored data are completely all transferred to the personal computer 1, the unit processes SCU terminates the facsimile transmission, clears the ONLINE signal and then returns to checking the switch SW back.

Next will be the schematic operation of the personal computer 1 is described with reference to FIG. 5. After completing the initial setting, the central processing unit (CPU) checks of the computer 1 the level on the control signal line L1.

If the level is set to ONLINE, it continues with the determination one mode of operation. In other words, after that, the operation corresponding to a keyed in takes place Operation has been set which has been effected on the personal computer 1 by an operator.

In this embodiment there are 4 modes of operation or -mode, namely a mode in which the data is recorded in the computer 1 by the plotter REC (recording mode) , a mode in which the data read by means of the scanner ISA is transferred to the computer 1 (image input mode) be entered, a mode in which the data in the computer 1 to another facsimile device (transmission / transfer mode) are transmitted and a mode in which the data received from the other facsimile machine

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entered into computer 1 (receive / transfer inode). In the processing on the computer 1 side, there are mainly two types of operation modes (an image output mode and an image input mode) because the input / output mode (Recording mode-image input mode) and the facsimile mode (transmission / transfer mode, reception / transfer period) are currently differ from one another in their signal levels which have been output on the control signal line L2 '»

In a mode (the image output mode) in which data from the side of the computer 1 to the plotter REC or a other facsimile machine, the central unit resets (CPU) of the computer 1 first changes the level of the control signal line L5 to RX and then starts sending data. During this process, both the ONLINE signal on the control signal line L1 and the signal PE checked on control signal line L5. Following the output of 8-bit data, the central unit sets (CPU) the signal SEND on the control signal line L3, and when the signal INSTB arrives via the control signal line L4 it clears the SEND signal and prepares the next data transfer. After all data is completely transferred it returns to check the signal ONLINE.

In one mode (the image input mode), if data is entered into the computer 1 from another facsimile machine or the When the scanner ISA is entered, the central processing unit (CPU) of the computer 1 first sets the control signal line L5 to TX (to a low level) and then checks the ONLINE signal on the control signal line L1. When this signal is issued, it waits for the arrival of the signal SEND via the control signal line L3. When the The central processing unit (CPU) receives 8-bit data via the SEND signal on the data lines and stores the data in the memory rather at the predetermined address; then she gives the signal INSTB, whereby the receiving end on the control signal line

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device L4 is displayed and waits for the next data to arrive. When the ONLINE signal disappears, drives the central processing unit (CPU) when determining an operating mode gone after waiting for the signal

5 ONLINE reappears once, and then these processes are repeated.

Thus, in the case that data, for example, are transmitted from the computer 1 side to the facsimile machine 10, the signals as shown in Fig. 6a on the coupling or connection cable CAB. In particular, when the facsimile machine 10 outputs the signal ONLINE, the computer 1 outputs the predetermined 8-bit data to the data lines and then outputs the signal SEND to the control signal line L3. After confirming the SEND signal, the facsimile machine 10 takes the 8-bit data on the data lines and emits the signal INSTB to inform about a reception on this side.

After confirming the INSTB signal, the computer 1 clears the SEND signal and then prepares the next data transmission before.

The mode of operation is now shown in detail with reference to Fig. 6b of the facsimile machine 10 and the computer 1 in the event that the remaining amount of recording paper sheets during data reception from the computer 1 by the facsimile machine 10, i.e. during a Recording by the plotter REC, becomes small. In this mode of operation, the TX / RX signal received from the computer picks up 1 has been delivered, a high level H at the beginning, so that in addition to the gate G3, the gate G11 is opened and the link G12 is closed. The control signal line L5 indicates a high level H because it has a resistor is pulled up to the utility line. Here-

through then the terminal (V) of the exclusive OR gate EXOR on the facsimile side assumes a high level H, and normally the terminal \ 2 /) also assumes one

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high level H, so that its output terminal is L, so that the gate G5 of the logic gate GA1 is opened and whose link G6 is closed. The facsimile machine 10 normally sets the port P4 of the output unit OP1 to a high level H, but outputs a low level L from the terminal P4 when the recording paper sheets become less in terms of the amount of food. This signal is sent to the control signal line L5 via the element G5 ^ - giving it the signal PE which indicates the removed remaining amount of recording paper sheets. Since the link G1 on the computer 1 side is open, this signal PE is sent to the computer 1. Upon arrival this signal stops a data transmission after the previously determined data has been sent out by the computer 1 and then sets the control signal line L5 to a level TX. When the control signal line L5 has a level TX (1), the output level of the OR gate EXOR on the facsimile side is inverted to a high level H, whereby the element G5 of the logic element GA1 is closed and its element G6 is opened, so that the level TX is applied to the connection P8 of the input units IP1. This is recognized by monitoring the level at connection P8 Facsimile machine 10 the fact that the RX mode (the transmission / transfer mode) has changed to TX mode (to receive / transfer mode).

Although in the previous embodiment using the control signal line between a facsimile mode and an input / output mode has been switched, this mode setting can be carried out using the specified Control code is sent over the 8 bit data lines. Although a very specific control signal line for sending out of the signal ONLINE, which indicates whether or not the facsimile machine 10 is in such a state, has been prepared not, in order to enable a connection to the computer 1 in the previous embodiment, it is also possible to both the ONLINE signal and the PE signal,

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which is the removed remaining amount of recording paper sheets indicates to pass through the same single line. As a result, the control signal line L1 and L2 are superfluous in the embodiment shown, which then results in a smaller number of signal lines Has. Although the confirmation signal INSTB was used in the previous embodiment in order to improve the reliability To improve signal transmission, this signal can also be dispensed with. In this case one is not applicable Acknowledgment of the INSTB signal, and the SEND signal is controlled to remain on the for a predetermined time Sending side is delivered. What is required as a minimum is consequently only two-way directional data lines for 8 bits and 2 bidirectional control signal lines L3 and B5.

Although in the previous embodiment the normal image data for data transmission between the facsimile machine 10 and the computer 1 can also alternatively transmit the compressed and encoded data will. In such a case, since the amount of data is less, the time required for data transmission is shortened. Although a personal computer was connected to a facsimile machine in the previous embodiment, even understandable also other devices that have an equivalent function, such as word processors, office computers or intelligent terminal units are connected to the facsimile machine.

According to the embodiment described above, data transmission is carried out between a facsimile apparatus and a computer, etc., and a coupling circuit is simplified in construction. In particular part of both the data lines and the control signal lines are designed as bilateral lines, which then allows high-speed data transmission with the aid of a few signal lines. End of description

Claims (1)

^ IAPl- SCHWABE SANDMAIR PATENTANWÄLTE -_ [--'_ "-" - "- MAUERKIRCHERSTR '^ S "45- βΟΟΟ ~ M ¹ JNCHEN 80" - - * - Attorney's file: 33 652 Ricoh Company, Ltd.
Tokyo / Japan Image information processing system Claims 1. Image information processing system, characterized in that that a facsimile device (10) with a plotter (REC) and a scanner (ISA) via bidirectional Data lines (L1 to L5) are connected to a computer system (T), and that transmission / reception of data between the computer system (1). and the plotter (REC) as well as between the computer system M) and the scanner (ISA) is carried out via common data lines. 2. Image information processing system, thereby g e k e η nzeich net that a facsimile device (1) with an image reading unit (ISA) for reading image information and with a recording unit (REC) for recording the image information is connected to a computer system (1) via a coupling unit (IFP), and that a paper end signal for the facsimile machine (10) is delivered to the computer system (1) via the coupling unit (IFP). 3. image information processing system according to claim 2, characterized in that a signal line for sending out the paper end signal also serves as a control line is used for other signals. VII / XX / Ktz - 2 - * (089) 98 82 72 - 74 Telex: 5 24 560 BERG d Bank accounts: Bayer. Vereinsbank Munich 453100 (bank code 700 202 70) Telegrams (cable) telecopier: (089) 983049 Hypo-Bank Munich 4410122850 (BLZ 70020011) Swift Code. HYPO DE Mti / BbHGSiAPFPAIfNT Mum-tit-n KaIIe Inlotec G350 Gr ll-tlll Postscheck Munich 65343 808 (BLZ 70010080) -2- "■ '343 Ί 754 4. Image information processing system characterized by data lines (L1 to L5) to a Facsimile machine (10) provided with a plotter (REC), a scanner (ISA) and a network control unit (NCU) is to be connected to a control system (1) with an input unit (IFP), a memory device and a display device (CRT) is provided and also has a switching device (SW) to display the Facsimile device (10) between a mode in which data is sent via the network control device (NCU) to another facsimile device sent and received by the other facsimile machine, and switched to a mode at which data is not sent to and received from the computer system fi) via the network control device will. 5. Image information processing system, featured by an image reading unit (ISA) for scanning an original to read an image of the original and image information by a recording unit (REC) for recording the image information on a predetermined one Recording material; through a network control unit (NCU) for performing reception / transmission control on transmission lines; through a module 25'lation unit (LSA; FSK) for modulating the image information into a transmission signal; by a demodulation unit (DSU) for demodulating the transmission signal into picture information; by a compression unit (DCR) for converting the image information into compressed and coded information; by a reproduction unit (REC) to return the compressed and encoded information; through a coupling unit (INF) for inputting and outputting the image information or condensed and encoded information; by an electronic control unit for controlling the corresponding units, and by at least one switch (SW) to a command regarding the operation of the coupling unit (IFF) to issue, wherein the electronic control unit at least one control to the information, which about the coupling - 3 - unit (INF) has been received to the recording unit (REC) in accordance with the predetermined switching operation and / or to output the information received from the coupling unit, a control in order to transmit the information received from the image reading unit (ISA) to output received information via the coupling unit, a control to the information which has been entered via the coupling unit, directly or after a compression process to modulate and then to transfer the mudulated information via the network control unit (SCU): and carries out controlling to demodulate the information received via the network control unit (NCU) and then directly, or after playing the. deliver demodulated information to the coupling unit (IFF). .6. System according to claim 5, characterized in that that the electronic control unit sets an operating mode according to the information received from the coupling unit has been received on a predetermined switch actuation. 1. System according to claim 5, characterized in that the coupling unit has a number of bidirectional data lines (L1, L2) and a number of bidirectional control signal lines (L3 to L5) and control elements (GA3, GA4) controls to the transmission and reception side to set of signals, which via the bidirectional data lines (L1, L2) and the bidirectional control signal lines. Lines (L3 to L5) are allowed to pass through in accordance with a signal level on a bidirectional control signal line. 8. Image information processing system g e k e η n-, draws through an image reading unit (ISA) for scanning an original to read an image of the original and to obtain image information; by a recording unit (REC) to record the image information on a predetermined recording material; through a network. Control unit (NCU) for performing reception / transmission control on transmission lines; by a modulation unit (HSM, FSK) for modulating the image information into a transmission signal; by a demodulation unit (DSU) for demodulating the transmission signal into picture information; by a compression unit (DCR) for converting the image information into compressed and encoded information; through a playback unit to the return condensed and encoded information to the template information; by an electronic control unit for controlling the respective units, and through a coupling unit (IFP) with a number of bidirectional Data lines (L1, L2) and with a number of bidirectional Control signal lines (L3 to L5) to control logic elements (GA3, GA4) to set the sending and receiving side of signals, which are via the bilateral Directed data and control signal lines corresponding to a signal level on a bidirectional control signal line are allowed through to thereby the image information or its compressed and encoded information input and output. 9. System according to claim 8, characterized in that the electronic control unit h-η e t at least one Control to the information received from the. Coupling unit (IFP) has been received to the receiving unit accordingly a predetermined switch actuation and / or to output the information from the coupling unit (IFP) has been received, controlling to output the information received from the image reading unit (ISA) via the coupling unit, controlling to output the information which has been entered via the coupling unit, directly or after a compression process and then to modulate the modulated information via the network control unit (NCU) to be transmitted, and a control is carried out in order to transfer the information which is transmitted via the network control unit (NCU) has been caught to modulate and then directly or after a reproduction of the demodulated information to the To deliver coupling unit. 10. System according to claim 9, characterized in that that the coupling unit (IFP) has at least two bidirectional control signal lines (L4, L5) has, and that the electronic control unit information on the data lines in a timed manner with respect to an input signal on a second control signal line reads, when a first control signal line is at a level which indicates reception, predetermined data to the Data lines (LI, L2) outputs and also a predetermined level to the second control signal line with a predetermined j timing outputs when the first control signal line is at a level, which transmission and the first control signal line is set to transmission and a predetermined level to the same Line releases when an abnormal condition or a Interrupt request is detected.